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The human eye is sensitive to a narrow range of wavelengths that make up the visible light spectrum, but not to the infrared range. However, a Rasp Pi outfitted with an IR camera module offers a low-cost solution for taking photographs using infrared light.

The amazing Raspberry Pi keeps evolving before our eyes. The Pis in the world (which reached 2 million in October 2013) are inspiring hackers young and old, amateur and professional, to put the Pi to work on practical problems. And, wherever Pi users go, Raspberry Pi Geek goes.